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Reverse depth & 32F buffer format

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-Adds reversed depth projection model, dramatically increasing depth buffer effective resolution.
-Adds 32F depth 8U stencil format GFXFormatD32FS8X24 (following DX naming conventions). Note this is a 64-bit format, and likely not suitable for mobile platforms. Revert to GFXFormatD24S8 in renderManager.tscript for mobile & "ancient" platforms.
-Corrects alignment of texture type details array.
This commit is contained in:
AtomicWalrus 2023-04-14 20:13:28 -06:00
parent c08fa359d2
commit 75625dc679
37 changed files with 91 additions and 57 deletions
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35
Engine/source/gfx/gl/gfxGLDevice.cpp
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@ -191,6 +191,7 @@ void GFXGLDevice::initGLState()
glGenVertexArrays(1, &vao);
glBindVertexArray(vao);
glClipControl(GL_LOWER_LEFT, GL_ZERO_TO_ONE);
//enable sRGB
glEnable(GL_FRAMEBUFFER_SRGB);
@ -794,38 +795,26 @@ void GFXGLDevice::setClipRect( const RectI &inRect )
mClip = inRect;
mClip.intersect(maxRect);
// Create projection matrix. See http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/ortho.html
const F32 left = mClip.point.x;
const F32 right = mClip.point.x + mClip.extent.x;
const F32 bottom = mClip.extent.y;
const F32 top = 0.0f;
const F32 nearPlane = 0.0f;
const F32 farPlane = 1.0f;
const F32 tx = -(right + left)/(right - left);
const F32 ty = -(top + bottom)/(top - bottom);
const F32 tz = -(farPlane + nearPlane)/(farPlane - nearPlane);
static Point4F pt;
pt.set(2.0f / (right - left), 0.0f, 0.0f, 0.0f);
F32 l = F32(mClip.point.x);
F32 r = F32(mClip.point.x + mClip.extent.x);
F32 b = F32(mClip.point.y + mClip.extent.y);
F32 t = F32(mClip.point.y);
// Set up projection matrix,
//static Point4F pt;
pt.set(2.0f / (r - l), 0.0f, 0.0f, 0.0f);
mProjectionMatrix.setColumn(0, pt);
pt.set(0.0f, 2.0f/(top - bottom), 0.0f, 0.0f);
pt.set(0.0f, 2.0f / (t - b), 0.0f, 0.0f);
mProjectionMatrix.setColumn(1, pt);
pt.set(0.0f, 0.0f, -2.0f/(farPlane - nearPlane), 0.0f);
pt.set(0.0f, 0.0f, 1.0f, 0.0f);
mProjectionMatrix.setColumn(2, pt);
pt.set(tx, ty, tz, 1.0f);
pt.set((l + r) / (l - r), (t + b) / (b - t), 1.0f, 1.0f);
mProjectionMatrix.setColumn(3, pt);
// Translate projection matrix.
static MatrixF translate(true);
pt.set(0.0f, -mClip.point.y, 0.0f, 1.0f);
translate.setColumn(3, pt);
mProjectionMatrix *= translate;
MatrixF mTempMatrix(true);
setViewMatrix( mTempMatrix );
setWorldMatrix( mTempMatrix );