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Update 02 Point Shadows.md

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JiangMuWen
2017-02-04 21:45:27 +08:00
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docs/05 Advanced Lighting/03 Shadows/02 Point Shadows.md
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@@ -108,7 +108,7 @@ RenderScene();
GLfloat aspect = (GLfloat)SHADOW_WIDTH/(GLfloat)SHADOW_HEIGHT;
GLfloat near = 1.0f;
GLfloat far = 25.0f;
glm::mat4 shadowProj = glm::perspective(90.0f, aspect, near, far);
glm::mat4 shadowProj = glm::perspective(glm::radians(90.0f), aspect, near, far);
```
非常重要的一点是，这里glm::perspective的视野参数，设置为90度。90度我们才能保证视野足够大到可以合适地填满立方体贴图的一个面，立方体贴图的所有面都能与其他面在边缘对齐。