mirror of
https://github.com/lxsang/Diya-API.git
synced 2024-12-27 20:08:22 +01:00
65 lines
1.6 KiB
Smalltalk
65 lines
1.6 KiB
Smalltalk
Class {
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#name : #SimpleDiyaRenderer,
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#superclass : #DiyaRenderer,
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#instVars : [
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'vertexBuffer',
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'arrayBuffer',
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'bufferData',
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'shader'
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],
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#category : #'Diya-Graphics'
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}
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{ #category : #deleting }
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SimpleDiyaRenderer >> destroy [
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vertexBuffer delete.
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arrayBuffer delete.
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GLSimpleShader reset.
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]
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{ #category : #initialization }
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SimpleDiyaRenderer >> initialize [
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super initialize.
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vertexBuffer := OpenGLVertexBuffer new.
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arrayBuffer := OpenGLVertexArray new.
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bufferData := FFIExternalArray externalNewType: GLfloat size: 9.
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bufferData autoRelease.
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shader := GLSimpleShader uniqueInstance.
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]
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{ #category : #deleting }
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SimpleDiyaRenderer >> render [
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OpenGL clearColorR: 1.0 G: 0 B: 1.0 A:0.
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OpenGL clear: GL_COLOR_BUFFER_BIT.
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shader use.
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shader setUniform: #u_time value: DiyaClock uniqueInstance elapsedTime asFloat.
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shader setUniform: #u_resolution value: { context resolution x. context resolution y }.
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context mouse ifNotNil: [
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shader setUniform: #u_mouse value: { context mouse x. context mouse y }.
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].
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arrayBuffer enableAttribute: 0.
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vertexBuffer bind: GL_ARRAY_BUFFER.
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OpenGLVertexArray vertexAttributePointerIndex: 0 size:3 type: GL_FLOAT normalized: GL_FALSE stride: 0 pointer: nil .
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OpenGL drawArrays: GL_TRIANGLES first:0 count: 3.
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arrayBuffer disableAttribute: 0.
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]
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{ #category : #deleting }
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SimpleDiyaRenderer >> setup [
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bufferData
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at: 1 put: -1.0;
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at: 2 put: -1.0;
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at: 3 put: 0;
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at: 4 put: 1.0;
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at: 5 put: -1.0;
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at: 6 put: 0;
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at: 7 put: 0;
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at: 8 put: 1.0;
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at: 9 put: 0.
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arrayBuffer bind.
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vertexBuffer bind: GL_ARRAY_BUFFER.
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vertexBuffer data: GL_ARRAY_BUFFER data:bufferData usage: GL_STATIC_DRAW.
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]
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