Michaël Lemaire
68945111d1
- Added early check on terrain height range during iteration - Added test render of vegetation model - Tweaked basic tree model
53 lines
1.6 KiB
C++
53 lines
1.6 KiB
C++
#include "OverlayRasterizer.h"
|
|
|
|
#include "Color.h"
|
|
#include "SoftwareRenderer.h"
|
|
#include "CameraDefinition.h"
|
|
#include "CanvasFragment.h"
|
|
|
|
OverlayRasterizer::OverlayRasterizer(SoftwareRenderer *renderer, RenderProgress *progress):
|
|
Rasterizer(renderer, progress, 0, COLOR_WHITE)
|
|
{
|
|
}
|
|
|
|
int OverlayRasterizer::prepareRasterization()
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
void OverlayRasterizer::rasterizeToCanvas(CanvasPortion *canvas)
|
|
{
|
|
double width = (double)renderer->render_camera->getWidth();
|
|
double height = (double)renderer->render_camera->getHeight();
|
|
Vector3 topleft = renderer->unprojectPoint(Vector3(height, 0.0, 1.0));
|
|
Vector3 bottomleft = renderer->unprojectPoint(Vector3(0.0, 0.0, 1.0));
|
|
Vector3 topright = renderer->unprojectPoint(Vector3(height, width, 1.0));
|
|
Vector3 bottomright = renderer->unprojectPoint(Vector3(0.0, width, 1.0));
|
|
|
|
pushQuad(canvas, topleft, bottomleft, bottomright, topright);
|
|
}
|
|
|
|
Color OverlayRasterizer::shadeFragment(const CanvasFragment &fragment, const CanvasFragment *) const
|
|
{
|
|
double width = (double)renderer->render_camera->getWidth() - 1.0;
|
|
double height = (double)renderer->render_camera->getHeight() - 1.0;
|
|
double relx;
|
|
double rely;
|
|
double x = floor(fragment.getPixel().x);
|
|
double y = floor(fragment.getPixel().y);
|
|
|
|
if (width > height)
|
|
{
|
|
relx = 2.0 * ((x - (width - height) * 0.5) / height - 0.5);
|
|
rely = 2.0 * (y / height - 0.5);
|
|
}
|
|
else
|
|
{
|
|
relx = 2.0 * (x / height - 0.5);
|
|
rely = 2.0 * ((y - (height - width) * 0.5) / height - 0.5);
|
|
}
|
|
|
|
return processPixel((int)x, (int)y, relx, rely);
|
|
}
|
|
|