添加fullscreenquad类

fullscreenquad.cpp

@@ -0,0 +1,96 @@
+#include "fullscreenquad.h"
+
+void FullScreenQuad::Init()
+{
+	mVertexBuffer = new VertexBuffer();
+	mVertexBuffer->SetSize(4);
+	mVertexBuffer->SetTexcoord(0, 0.0f, 0.0f);
+	mVertexBuffer->SetTexcoord(1, 1.0f, 0.0f);
+	mVertexBuffer->SetTexcoord(2, 0.0f, 1.0f);
+	mVertexBuffer->SetTexcoord(3, 1.0f, 1.0f);
+	mShader = new Shader();
+}
+
+void FullScreenQuad::Draw() {
+	//µ¥Î»¾ØÕó
+	float identity[] = {
+		1.0f,0.0f,0.0f,0.0f,
+		0.0f,1.0f,0.0f,0.0f,
+		0.0f,0.0f,1.0f,0.0f,
+		0.0f,0.0f,0.0f,1.0f,
+	};
+	mVertexBuffer->SetPosition(0, -1.0f, -1.0f, 0.0f);
+	mVertexBuffer->SetPosition(1, 1.0f, -1.0f, 0.0f);
+	mVertexBuffer->SetPosition(2, -1.0f, 1.0f, 0.0f);
+	mVertexBuffer->SetPosition(3, 1.0f, 1.0f, 0.0f);
+	mVertexBuffer->Bind();
+	mShader->Bind(identity, identity, identity);
+	glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+	mVertexBuffer->Unbind();
+}
+void FullScreenQuad::DrawToLeftTop() {
+	float identity[] = {
+		1.0f,0.0f,0.0f,0.0f,
+		0.0f,1.0f,0.0f,0.0f,
+		0.0f,0.0f,1.0f,0.0f,
+		0.0f,0.0f,0.0f,1.0f,
+	};
+	mVertexBuffer->SetPosition(0, -1.0f, 0.0f, -1.0f);
+	mVertexBuffer->SetPosition(1, 0.0f, 0.0f, -1.0f);
+	mVertexBuffer->SetPosition(2, -1.0f, 1.0f, -1.0f);
+	mVertexBuffer->SetPosition(3, 0.0f, 1.0f, -1.0f);
+	mVertexBuffer->Bind();
+	mShader->Bind(identity, identity, identity);
+	glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+	mVertexBuffer->Unbind();
+}
+void FullScreenQuad::DrawToLeftBottom() {
+	float identity[] = {
+		1.0f,0.0f,0.0f,0.0f,
+		0.0f,1.0f,0.0f,0.0f,
+		0.0f,0.0f,1.0f,0.0f,
+		0.0f,0.0f,0.0f,1.0f,
+	};
+	mVertexBuffer->SetPosition(0, -1.0f, -1.0f, -1.0f);
+	mVertexBuffer->SetPosition(1, 0.0f, -1.0f, -1.0f);
+	mVertexBuffer->SetPosition(2, -1.0f, 0.0f, -1.0f);
+	mVertexBuffer->SetPosition(3, 0.0f, 0.0f, -1.0f);
+	mVertexBuffer->Bind();
+	mShader->Bind(identity, identity, identity);
+	glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+	mVertexBuffer->Unbind();
+}
+
+void FullScreenQuad::DrawToRightTop() {
+	float identity[] = {
+		1.0f,0.0f,0.0f,0.0f,
+		0.0f,1.0f,0.0f,0.0f,
+		0.0f,0.0f,1.0f,0.0f,
+		0.0f,0.0f,0.0f,1.0f,
+	};
+	mVertexBuffer->SetPosition(0, 0.0f, 0.0f, -1.0f);
+	mVertexBuffer->SetPosition(1, 1.0f, 0.0f, -1.0f);
+	mVertexBuffer->SetPosition(2, 0.0f, 1.0f, -1.0f);
+	mVertexBuffer->SetPosition(3, 1.0f, 1.0f, -1.0f);
+	mVertexBuffer->Bind();
+	mShader->Bind(identity, identity, identity);
+	glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+	mVertexBuffer->Unbind();
+}
+
+void FullScreenQuad::DrawToRightBottom() {
+	float identity[] = {
+		1.0f,0.0f,0.0f,0.0f,
+		0.0f,1.0f,0.0f,0.0f,
+		0.0f,0.0f,1.0f,0.0f,
+		0.0f,0.0f,0.0f,1.0f,
+	};
+	mVertexBuffer->SetPosition(0, 0.0f, -1.0f, -1.0f);
+	mVertexBuffer->SetPosition(1, 1.0f, -1.0f, -1.0f);
+	mVertexBuffer->SetPosition(2, 0.0f, 0.0f, -1.0f);
+	mVertexBuffer->SetPosition(3, 1.0f, 0.0f, -1.0f);
+	mVertexBuffer->Bind();
+	mShader->Bind(identity, identity, identity);
+	glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+	mVertexBuffer->Unbind();
+}

fullscreenquad.h

@@ -0,0 +1,17 @@
+#pragma once
+#include "ggl.h"
+#include "vertexbuffer.h"
+#include "shader.h"
+
+class FullScreenQuad {
+public:
+	VertexBuffer *mVertexBuffer;
+	Shader *mShader;
+public:
+	void Init();
+	void Draw();
+	void DrawToLeftTop();
+	void DrawToRightTop();
+	void DrawToLeftBottom();
+	void DrawToRightBottom();
+};

shader.cpp

@@ -184,10 +184,3 @@ GLuint Shader::SetTextureCube(const char * name, GLuint texture) {
 	}
 	return oldTexture;
 }
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