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Modified the world box to render axes in negative space

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Also Modified renderDashedLine to accept params for dash len and gap len so we can display negative axes as dashed lines with 500mm dashes and gaps.
This commit is contained in:
Nex Pro 2015-08-23 16:21:20 +01:00
parent 53c5c75071
commit 1f08444369
3 changed files with 33 additions and 16 deletions
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18
interface/src/Util.cpp
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@ -35,17 +35,33 @@ using namespace std;
void renderWorldBox(gpu::Batch& batch) {
auto geometryCache = DependencyManager::get<GeometryCache>();
// Show edge of world
// Show center of world
static const glm::vec3 red(1.0f, 0.0f, 0.0f);
static const glm::vec3 green(0.0f, 1.0f, 0.0f);
static const glm::vec3 blue(0.0f, 0.0f, 1.0f);
static const glm::vec3 grey(0.5f, 0.5f, 0.5f);
static const glm::vec4 DASHED_RED(1.0f, 0.0f, 0.0f, 1.0f);
static const glm::vec4 DASHED_GREEN(0.0f, 1.0f, 0.0f, 1.0f);
static const glm::vec4 DASHED_BLUE(0.0f, 0.0f, 1.0f, 1.0f);
static const float DASH_LENGTH = 0.5;
static const float GAP_LENGTH = 0.5;
auto transform = Transform{};
batch.setModelTransform(transform);
geometryCache->renderLine(batch, glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3(TREE_SCALE, 0.0f, 0.0f), red);
geometryCache->renderDashedLine(batch, glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3(-TREE_SCALE, 0.0f, 0.0f), DASHED_RED,
DASH_LENGTH, GAP_LENGTH);
geometryCache->renderLine(batch, glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3(0.0f, TREE_SCALE, 0.0f), green);
geometryCache->renderDashedLine(batch, glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3(0.0f, -TREE_SCALE, 0.0f), DASHED_GREEN,
DASH_LENGTH, GAP_LENGTH);
geometryCache->renderLine(batch, glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3(0.0f, 0.0f, TREE_SCALE), blue);
geometryCache->renderDashedLine(batch, glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3(0.0f, 0.0f, -TREE_SCALE), DASHED_BLUE,
DASH_LENGTH, GAP_LENGTH);
geometryCache->renderLine(batch, glm::vec3(0.0f, 0.0f, TREE_SCALE), glm::vec3(TREE_SCALE, 0.0f, TREE_SCALE), grey);
geometryCache->renderLine(batch, glm::vec3(TREE_SCALE, 0.0f, TREE_SCALE), glm::vec3(TREE_SCALE, 0.0f, 0.0f), grey);

12
libraries/render-utils/src/GeometryCache.cpp
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@ -1321,7 +1321,9 @@ void GeometryCache::renderQuad(gpu::Batch& batch, const glm::vec3& topLeft, cons
batch.draw(gpu::TRIANGLE_STRIP, 4, 0);
}
void GeometryCache::renderDashedLine(gpu::Batch& batch, const glm::vec3& start, const glm::vec3& end, const glm::vec4& color, int id) {
void GeometryCache::renderDashedLine(gpu::Batch& batch, const glm::vec3& start, const glm::vec3& end, const glm::vec4& color,
const float dash_length, const float gap_length, int id) {
bool registered = (id != UNKNOWN_ID);
Vec3PairVec2Pair key(Vec3Pair(start, end), Vec2Pair(glm::vec2(color.x, color.y), glm::vec2(color.z, color.w)));
BatchItemDetails& details = registered ? _registeredDashedLines[id] : _dashedLines[key];
@ -1345,16 +1347,14 @@ void GeometryCache::renderDashedLine(gpu::Batch& batch, const glm::vec3& start,
((int(color.w * 255.0f) & 0xFF) << 24);
// draw each line segment with appropriate gaps
const float DASH_LENGTH = 0.05f;
const float GAP_LENGTH = 0.025f;
const float SEGMENT_LENGTH = DASH_LENGTH + GAP_LENGTH;
const float SEGMENT_LENGTH = dash_length + gap_length;
float length = glm::distance(start, end);
float segmentCount = length / SEGMENT_LENGTH;
int segmentCountFloor = (int)glm::floor(segmentCount);
glm::vec3 segmentVector = (end - start) / segmentCount;
glm::vec3 dashVector = segmentVector / SEGMENT_LENGTH * DASH_LENGTH;
glm::vec3 gapVector = segmentVector / SEGMENT_LENGTH * GAP_LENGTH;
glm::vec3 dashVector = segmentVector / SEGMENT_LENGTH * dash_length;
glm::vec3 gapVector = segmentVector / SEGMENT_LENGTH * gap_length;
const int FLOATS_PER_VERTEX = 3;
details.vertices = (segmentCountFloor + 1) * 2;

3
libraries/render-utils/src/GeometryCache.h
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@ -179,7 +179,8 @@ public:
void renderLine(gpu::Batch& batch, const glm::vec3& p1, const glm::vec3& p2,
const glm::vec4& color1, const glm::vec4& color2, int id = UNKNOWN_ID);
void renderDashedLine(gpu::Batch& batch, const glm::vec3& start, const glm::vec3& end, const glm::vec4& color, int id = UNKNOWN_ID);
void renderDashedLine(gpu::Batch& batch, const glm::vec3& start, const glm::vec3& end, const glm::vec4& color,
const float dash_length = 0.05f, const float gap_length = 0.025f, int id = UNKNOWN_ID);
void renderLine(gpu::Batch& batch, const glm::vec2& p1, const glm::vec2& p2, const glm::vec3& color, int id = UNKNOWN_ID)
{ renderLine(batch, p1, p2, glm::vec4(color, 1.0f), id); }