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