com.jogamp.opengl.GL2GL3#glUniform1i

Source File: MeshProto.java From jaamsim with Apache License 2.0

5 votes

private void initUniforms(Renderer renderer, Mat4d modelViewMat, Mat4d projMat, Mat4d viewMat, Mat4d normalMat) {
	GL2GL3 gl = renderer.getGL();

	lightsDirScratch[0].mult4(viewMat, lightsDir[0]);
	lightsDirScratch[1].mult4(viewMat, lightsDir[1]);

	lightsDirFloats[0] = (float)lightsDirScratch[0].x;
	lightsDirFloats[1] = (float)lightsDirScratch[0].y;
	lightsDirFloats[2] = (float)lightsDirScratch[0].z;

	lightsDirFloats[3] = (float)lightsDirScratch[1].x;
	lightsDirFloats[4] = (float)lightsDirScratch[1].y;
	lightsDirFloats[5] = (float)lightsDirScratch[1].z;

	for (int i = 0; i < usedShaders.length; ++i) {
		int shaderID = usedShaders[i];
		ShaderInfo si = sInfos[shaderID];

		gl.glUseProgram(si.meshProgHandle);

		gl.glUniformMatrix4fv(si.modelViewMatVar, 1, false, RenderUtils.MarshalMat4d(modelViewMat), 0);
		gl.glUniformMatrix4fv(si.projMatVar, 1, false, RenderUtils.MarshalMat4d(projMat), 0);
		gl.glUniformMatrix4fv(si.normalMatVar, 1, false, RenderUtils.MarshalMat4d(normalMat), 0);

		gl.glUniform3fv(si.lightDirVar, 2, lightsDirFloats, 0);
		gl.glUniform1fv(si.lightIntVar, 2, lightsInt, 0);
		gl.glUniform1i(si.numLightsVar, numLights);

		gl.glUniform1f(si.cVar, Camera.C);
		gl.glUniform1f(si.fcVar, Camera.FC);

	}
}

Source File: Skybox.java From jaamsim with Apache License 2.0

4 votes

public void render(int contextID, Renderer renderer, Camera cam) {

		if (textureURI == null) {
			return;
		}

		if (!isLoaded) {
			loadGPUAssets(renderer);
		}
		if (!VAOMap.containsKey(contextID)) {
			setupVAO(contextID, renderer);
		}

		GL2GL3 gl = renderer.getGL();

		int textureID = renderer.getTexCache().getTexID(gl, textureURI, false, false, false);
		if (textureID == TexCache.LOADING_TEX_ID) {
			// Sky box is not ready yet, get it next time
			return;
		}

		int vao = VAOMap.get(contextID);
		gl.glBindVertexArray(vao);

		gl.glUseProgram(progHandle);

		gl.glUniformMatrix4fv(projMatVar, 1, false, RenderUtils.MarshalMat4d(cam.getProjMat4d()), 0);

		Mat4d invViewMat = new Mat4d();
		invViewMat.setRot4(cam.getTransformRef().getRotRef());
		gl.glUniformMatrix4fv(invViewMatVar, 1, false, RenderUtils.MarshalMat4d(invViewMat), 0);

		gl.glActiveTexture(GL2GL3.GL_TEXTURE0);
		gl.glBindTexture(GL2GL3.GL_TEXTURE_2D, textureID);
		// Disable mipmaps for skyboxes as the discontinuity screws them up
		gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_MIN_FILTER, GL2GL3.GL_LINEAR );

		gl.glUniform1i(texVar, 0);

		gl.glDrawArrays(GL2GL3.GL_TRIANGLES, 0, 6);

		gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_MIN_FILTER, GL2GL3.GL_LINEAR_MIPMAP_LINEAR );

		gl.glBindVertexArray(0);

	}

Source File: TextureView.java From jaamsim with Apache License 2.0

4 votes

private void renderImp(int contextID, Renderer renderer, Camera cam, Ray pickRay) {

		if (!staticInit) {
			initStaticBuffers(renderer);
		}

		GL2GL3 gl = renderer.getGL();

		int textureID = _texLoader.getTexID(renderer);

		if (textureID == TexCache.LOADING_TEX_ID) {
			return; // This texture is not ready yet
		}

		if (!VAOMap.containsKey(contextID)) {
			setupVAO(contextID, renderer);
		}

		int vao = VAOMap.get(contextID);
		gl.glBindVertexArray(vao);

		if (	_texCoords != null &&
				(_texCoordHandle == null || !_texCoordHandle.isValid()) ) {
			updateTexCoordBuffer(renderer);
		}

		Mat4d modelViewMat = new Mat4d();

		cam.getViewMat4d(modelViewMat);
		modelViewMat.mult4(_trans.getMat4dRef());
		modelViewMat.scaleCols3(_scale);

		Mat4d normalMat = RenderUtils.getInverseWithScale(_trans, _scale);
		normalMat.transpose4();

		gl.glUseProgram(progHandle);

		gl.glUniformMatrix4fv(modelViewMatVar, 1, false, RenderUtils.MarshalMat4d(modelViewMat), 0);
		gl.glUniformMatrix4fv(projMatVar, 1, false, RenderUtils.MarshalMat4d(cam.getProjMat4d()), 0);
		gl.glUniformMatrix4fv(normalMatVar, 1, false, RenderUtils.MarshalMat4d(normalMat), 0);
		gl.glUniformMatrix4fv(bindSpaceMatVar, 1, false, identMat, 0);
		gl.glUniformMatrix4fv(bindSpaceNorMatVar, 1, false, identMat, 0);

		gl.glUniform1f(cVar, Camera.C);
		gl.glUniform1f(fcVar, Camera.FC);

		gl.glUniform1i(numLightsVar, 1);
		gl.glUniform3fv(lightDirVar, 1, lightDir, 0);
		gl.glUniform1fv(lightIntVar, 1, lightInt, 0);

		gl.glUniform3f(ambientColorVar, 0.0f, 0.0f, 0.0f);
		gl.glUniform3f(specColorVar, 0.0f, 0.0f, 0.0f);
		gl.glUniform1f(shininessVar, 1.0f);

		gl.glActiveTexture(GL2GL3.GL_TEXTURE0);
		gl.glBindTexture(GL2GL3.GL_TEXTURE_2D, textureID);
		gl.glUniform1i(texVar, 0);
		gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_WRAP_S, GL2GL3.GL_CLAMP_TO_EDGE);
		gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_WRAP_T, GL2GL3.GL_CLAMP_TO_EDGE);

		// Draw
		gl.glDisable(GL2GL3.GL_CULL_FACE);
		gl.glDrawArrays(GL2GL3.GL_TRIANGLES, 0, 6);
		gl.glEnable(GL2GL3.GL_CULL_FACE);

		gl.glBindVertexArray(0);

	}

Source File: OverlayTexture.java From jaamsim with Apache License 2.0

4 votes

@Override
public void render(int contextID, Renderer renderer,
		double windowWidth, double windowHeight, Camera cam, Ray pickRay) {

	if (!staticInit) {
		initStaticBuffers(renderer);
	}

	double x = _x;
	double y = _y;
	if (_alignRight) {
		x = windowWidth - _x - _width;
	}
	if (!_alignBottom) {
		y = windowHeight - _y - _height;
	}

	GL2GL3 gl = renderer.getGL();

	int textureID = renderer.getTexCache().getTexID(gl, _imageURI, _isTransparent, _isCompressed, false);

	if (textureID == TexCache.LOADING_TEX_ID) {
		return; // This texture is not ready yet
	}

	if (!VAOMap.containsKey(contextID)) {
		setupVAO(contextID, renderer);
	}

	int vao = VAOMap.get(contextID);
	gl.glBindVertexArray(vao);

	gl.glUseProgram(progHandle);

	gl.glUniform1i(hasTexVar, 1);

	gl.glActiveTexture(GL2GL3.GL_TEXTURE0);
	gl.glBindTexture(GL2GL3.GL_TEXTURE_2D, textureID);
	gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_WRAP_S, GL2GL3.GL_CLAMP_TO_EDGE);
	gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_WRAP_T, GL2GL3.GL_CLAMP_TO_EDGE);
	gl.glUniform1i(texVar, 0);

	if (_isTransparent) {
		gl.glEnable(GL2GL3.GL_BLEND);
		gl.glBlendEquationSeparate(GL2GL3.GL_FUNC_ADD, GL2GL3.GL_MAX);
		gl.glBlendFuncSeparate(GL2GL3.GL_SRC_ALPHA, GL2GL3.GL_ONE_MINUS_SRC_ALPHA, GL2GL3.GL_ONE, GL2GL3.GL_ONE);
	}

	// Set the size and scale in normalized (-1, 1) coordinates
	double normX = x / (0.5 *  windowWidth) - 1;
	double normY = y / (0.5 * windowHeight) - 1;

	double normWidth  =  _width / (0.5 *  windowWidth);
	double normHeight = _height / (0.5 * windowHeight);

	gl.glUniform2f(offsetVar, (float)normX, (float)normY);
	gl.glUniform2f(sizeVar, (float)normWidth, (float)normHeight);

	// Draw
	gl.glDisable(GL2GL3.GL_CULL_FACE);
	gl.glDrawArrays(GL2GL3.GL_TRIANGLES, 0, 6);
	gl.glEnable(GL2GL3.GL_CULL_FACE);

	if (_isTransparent) {
		gl.glDisable(GL2GL3.GL_BLEND);
	}

}

Source File: MeshProto.java From jaamsim with Apache License 2.0

4 votes

@SuppressWarnings("unused")
private void renderBatch(int contextID, Renderer renderer,
        MeshBatch batch) {

	// TODO bounds
	// TODO size culling


	Material mat = _materials.get(batch.matIndex);
	SubMesh subMesh = _subMeshes.get(batch.meshIndex);

	int shaderID = mat.shaderID | Renderer.STATIC_BATCH_FLAG;

	GL2GL3 gl = renderer.getGL();
	GL4 gl4 = renderer.getGL4();

	if (!batch.vaoMaps[shaderID].containsKey(contextID)) {
		setupVAOForBatch(contextID, batch, renderer);
	}

	int vao = batch.vaoMaps[shaderID].get(contextID);
	gl.glBindVertexArray(vao);

	ShaderInfo si = sInfos[shaderID];

	gl.glUseProgram(si.meshProgHandle);

	// Setup uniforms for this object\
	if (mat._textureIndex != -1) {
		int texHandle = _textureHandles.get(mat._textureIndex);
		gl.glActiveTexture(GL2GL3.GL_TEXTURE0);
		gl.glBindTexture(GL2GL3.GL_TEXTURE_2D, texHandle);
		gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_WRAP_S, GL2GL3.GL_REPEAT);
		gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_WRAP_T, GL2GL3.GL_REPEAT);
		gl.glUniform1i(si.texVar, 0);
	} else {
		gl.glUniform4fv(si.diffuseColorVar, 1, mat._diffuseColor.toFloats(), 0);
	}

	gl.glUniform3fv(si.ambientColorVar, 1, mat._ambientColor.toFloats(), 0);
	gl.glUniform3fv(si.specColorVar, 1, mat._specColor.toFloats(), 0);
	gl.glUniform1f(si.shininessVar, (float)mat._shininess);

	// Actually draw it
	gl.glDisable(GL2GL3.GL_CULL_FACE);

	//gl.glDrawElements(GL2GL3.GL_TRIANGLES, subMesh._numVerts, GL2GL3.GL_UNSIGNED_INT, 0);
	gl4.glDrawElementsInstanced(GL2GL3.GL_TRIANGLES, subMesh._numVerts, GL2GL3.GL_UNSIGNED_INT, 0, batch.numInstances);

	gl.glEnable(GL2GL3.GL_CULL_FACE);

	gl.glBindVertexArray(0);

}

Source File: MeshProto.java From jaamsim with Apache License 2.0

4 votes

private void renderSubMesh(SubMesh subMesh, int materialIndex,
                           Mat4d subInstTrans,
                           Mat4d subInstInvTrans,
                           int contextID,
                           Renderer renderer) {

	Material mat = _materials.get(materialIndex);
	int shaderID = mat.shaderID;

	GL2GL3 gl = renderer.getGL();

	if (!subMesh.vaoMaps[shaderID].containsKey(contextID)) {
		setupVAOForSubMesh(contextID, subMesh, renderer);
	}

	int vao = subMesh.vaoMaps[shaderID].get(contextID);
	gl.glBindVertexArray(vao);

	ShaderInfo si = sInfos[shaderID];

	gl.glUseProgram(si.meshProgHandle);

	// Setup uniforms for this object
	Mat4d subInstNorm = new Mat4d(subInstInvTrans);
	subInstNorm.transpose4();

	gl.glUniformMatrix4fv(si.bindSpaceMatVar, 1, false, RenderUtils.MarshalMat4d(subInstTrans), 0);
	gl.glUniformMatrix4fv(si.bindSpaceNorMatVar, 1, false, RenderUtils.MarshalMat4d(subInstNorm), 0);

	if (mat._textureIndex != -1) {
		int texHandle = _textureHandles.get(mat._textureIndex);
		gl.glActiveTexture(GL2GL3.GL_TEXTURE0);
		gl.glBindTexture(GL2GL3.GL_TEXTURE_2D, texHandle);
		gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_WRAP_S, GL2GL3.GL_REPEAT);
		gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_WRAP_T, GL2GL3.GL_REPEAT);
		gl.glUniform1i(si.texVar, 0);
	} else {
		gl.glUniform4fv(si.diffuseColorVar, 1, mat._diffuseColor.toFloats(), 0);
	}

	gl.glUniform3fv(si.ambientColorVar, 1, mat._ambientColor.toFloats(), 0);
	gl.glUniform3fv(si.specColorVar, 1, mat._specColor.toFloats(), 0);
	gl.glUniform1f(si.shininessVar, (float)mat._shininess);

	if (mat._transType != MeshData.NO_TRANS) {
		gl.glBlendEquationSeparate(GL2GL3.GL_FUNC_ADD, GL2GL3.GL_MAX);

		if (mat._transType != MeshData.DIFF_ALPHA_TRANS) {
			gl.glBlendColor((float)mat._transColour.r,
			                (float)mat._transColour.g,
			                (float)mat._transColour.b,
			                (float)mat._transColour.a);
		}

		if (mat._transType == MeshData.A_ONE_TRANS) {
			gl.glBlendFuncSeparate(GL2GL3.GL_CONSTANT_ALPHA, GL2GL3.GL_ONE_MINUS_CONSTANT_ALPHA, GL2GL3.GL_ONE, GL2GL3.GL_ZERO);
		} else if (mat._transType == MeshData.RGB_ZERO_TRANS) {
			gl.glBlendFuncSeparate(GL2GL3.GL_ONE_MINUS_CONSTANT_COLOR, GL2GL3.GL_CONSTANT_COLOR, GL2GL3.GL_ONE, GL2GL3.GL_ZERO);
		} else if (mat._transType == MeshData.DIFF_ALPHA_TRANS) {
			gl.glBlendFuncSeparate(GL2GL3.GL_SRC_ALPHA, GL2GL3.GL_ONE_MINUS_SRC_ALPHA, GL2GL3.GL_ONE, GL2GL3.GL_ZERO);
		} else {
			assert(false); // Unknown transparency type
		}
	}

	// Actually draw it
	//gl.glPolygonMode(GL2GL3.GL_FRONT_AND_BACK, GL2GL3.GL_LINE);
	gl.glDisable(GL2GL3.GL_CULL_FACE);

	if (flattenBuffers) {
		gl.glDrawArrays(GL2GL3.GL_TRIANGLES, 0, subMesh._numVerts);
	} else {
		gl.glDrawElements(GL2GL3.GL_TRIANGLES, subMesh._numVerts, GL2GL3.GL_UNSIGNED_INT, 0);
	}
	gl.glEnable(GL2GL3.GL_CULL_FACE);

	// Reset the blend state
	if (mat._transType != MeshData.NO_TRANS) {
		gl.glBlendEquationSeparate(GL2GL3.GL_FUNC_ADD, GL2GL3.GL_MAX);
		gl.glBlendFuncSeparate(GL2GL3.GL_SRC_ALPHA, GL2GL3.GL_ONE_MINUS_SRC_ALPHA, GL2GL3.GL_ONE, GL2GL3.GL_ONE);
	}

	gl.glBindVertexArray(0);

}

Source File: MeshProto.java From jaamsim with Apache License 2.0

4 votes

private void initBatchUniforms(Renderer renderer, Mat4d modelViewMat, Mat4d projMat, Mat4d viewMat, Mat4d normalMat) {
	GL2GL3 gl = renderer.getGL();

	lightsDirScratch[0].mult4(viewMat, lightsDir[0]);
	lightsDirScratch[1].mult4(viewMat, lightsDir[1]);

	lightsDirFloats[0] = (float)lightsDirScratch[0].x;
	lightsDirFloats[1] = (float)lightsDirScratch[0].y;
	lightsDirFloats[2] = (float)lightsDirScratch[0].z;

	lightsDirFloats[3] = (float)lightsDirScratch[1].x;
	lightsDirFloats[4] = (float)lightsDirScratch[1].y;
	lightsDirFloats[5] = (float)lightsDirScratch[1].z;

	BatchShaderInfo si = bsInfo;

	gl.glUseProgram(si.progHandle);

	gl.glUniformMatrix4fv(si.modelViewMatVar, 1, false, RenderUtils.MarshalMat4d(modelViewMat), 0);
	gl.glUniformMatrix4fv(si.projMatVar, 1, false, RenderUtils.MarshalMat4d(projMat), 0);
	gl.glUniformMatrix4fv(si.normalMatVar, 1, false, RenderUtils.MarshalMat4d(normalMat), 0);

	gl.glUniform3fv(si.lightDirVar, 2, lightsDirFloats, 0);
	gl.glUniform1fv(si.lightIntVar, 2, lightsInt, 0);
	gl.glUniform1i(si.numLightsVar, numLights);

	gl.glUniform1f(si.cVar, Camera.C);
	gl.glUniform1f(si.fcVar, Camera.FC);

	int[] sampIDs = new int[_textureHandles.size()];
	for (int i = 0; i < sampIDs.length; ++i) {
		sampIDs[i] = i;
	}
	if (sampIDs.length > 0) {
		gl.glUniform1iv(si.diffTexVar, sampIDs.length, sampIDs, 0);
	}

	for (int i = 0; i < _textureHandles.size(); ++i) {
		gl.glActiveTexture(GL2GL3.GL_TEXTURE0+i);
		gl.glBindTexture(GL2GL3.GL_TEXTURE_2D, _textureHandles.get(i));
		gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_WRAP_S, GL2GL3.GL_REPEAT);
		gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_WRAP_T, GL2GL3.GL_REPEAT);
	}
}

Source File: OverlayPolygon.java From jaamsim with Apache License 2.0

2 votes

@Override
public void render(int contextID, Renderer renderer,
	double windowWidth, double windowHeight, Camera cam, Ray pickRay) {

	if (!staticInit) {
		initStaticData(renderer);
	}

	GL2GL3 gl = renderer.getGL();

	if (!VAOMap.containsKey(contextID)) {
		setupVAO(contextID, renderer);
	}

	int vao = VAOMap.get(contextID);
	gl.glBindVertexArray(vao);

	gl.glUseProgram(progHandle);

	gl.glUniform4fv(colorVar, 1, color.toFloats(), 0);

	gl.glUniform1i(hasTexVar, 0);


	// Set the size and offset in normalized (-1, 1) coordinates
	double scaleX = 2.0 / windowWidth;
	double scaleY = 2.0 / windowHeight;

	double pixelWidth = 2.0/windowWidth;
	double pixelHeight = 2.0/windowHeight;

	double xOffset = -1.0 + 0.5*pixelWidth;
	double yOffset = -1.0 + 0.5*pixelHeight;

	if (originTop) {
		scaleY *= -1.0;
		yOffset = 1.0 - 0.5*pixelHeight;
	}

	if (originRight) {
		scaleX *= -1.0;
		xOffset = 1.0 - 0.5*pixelWidth;
	}

	gl.glUniform2f(offsetVar, (float)xOffset, (float)yOffset);
	gl.glUniform2f(sizeVar, (float)scaleX, (float)scaleY);

	gl.glEnableVertexAttribArray(posVar);

	gl.glDisable(GL2GL3.GL_CULL_FACE);

	// Build up a float buffer to pass to GL

	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, glBuff);
	gl.glBufferData(GL2GL3.GL_ARRAY_BUFFER, pointsBuffer.limit() * 4, pointsBuffer, GL2GL3.GL_STATIC_DRAW);

	gl.glVertexAttribPointer(posVar, 2, GL2GL3.GL_FLOAT, false, 0, 0);

	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, 0);

	gl.glDrawArrays(GL2GL3.GL_TRIANGLE_FAN, 0, pointsBuffer.limit() / 2);

	gl.glEnable(GL2GL3.GL_CULL_FACE);

	gl.glBindVertexArray(0);
}

Source File: OverlayLine.java From jaamsim with Apache License 2.0

2 votes

@Override
public void render(int contextID, Renderer renderer,
	double windowWidth, double windowHeight, Camera cam, Ray pickRay) {

	if (!staticInit) {
		initStaticData(renderer);
	}

	GL2GL3 gl = renderer.getGL();

	if (!VAOMap.containsKey(contextID)) {
		setupVAO(contextID, renderer);
	}

	int vao = VAOMap.get(contextID);
	gl.glBindVertexArray(vao);

	gl.glUseProgram(progHandle);

	gl.glUniform4fv(colorVar, 1, color.toFloats(), 0);

	gl.glUniform1i(hasTexVar, 0);


	// Set the size and offset in normalized (-1, 1) coordinates
	double scaleX = 2.0 / windowWidth;
	double scaleY = 2.0 / windowHeight;

	double pixelWidth = 2.0/windowWidth;
	double pixelHeight = 2.0/windowHeight;

	double xOffset = -1.0 + 0.5*pixelWidth;
	double yOffset = -1.0 + 0.5*pixelHeight;

	if (originTop) {
		scaleY *= -1.0;
		yOffset = 1.0 - 0.5*pixelHeight;
	}

	if (originRight) {
		scaleX *= -1.0;
		xOffset = 1.0 - 0.5*pixelWidth;
	}

	gl.glUniform2f(offsetVar, (float)xOffset, (float)yOffset);
	gl.glUniform2f(sizeVar, (float)scaleX, (float)scaleY);

	gl.glEnableVertexAttribArray(posVar);

	gl.glDisable(GL2GL3.GL_CULL_FACE);

	if (!gl.isGLcore())
		gl.glLineWidth((float)lineWidth);
	else
		gl.glLineWidth(1.0f);

	// Build up a float buffer to pass to GL

	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, lineGLBuff);
	gl.glBufferData(GL2GL3.GL_ARRAY_BUFFER, lineBuffer.limit() * 4, lineBuffer, GL2GL3.GL_STATIC_DRAW);

	gl.glVertexAttribPointer(posVar, 2, GL2GL3.GL_FLOAT, false, 0, 0);

	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, 0);

	gl.glDrawArrays(GL2GL3.GL_LINES, 0, lineBuffer.limit() / 2);

	gl.glLineWidth(1.0f);

	gl.glEnable(GL2GL3.GL_CULL_FACE);

	gl.glBindVertexArray(0);
}

Java Code Examples for com.jogamp.opengl.GL2GL3#glUniform1i()